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Verilog: Full Adder Behavioral Modelling with Testbench Code
Verilog Code Full Adder Behavioral Modelling module Full_Adder ( input a, b, cin; output sum, carry ); always @(a or b or cin) assign {carry,sum} = a + b + cin; endmodule // test-bench initial begin a=0; b=0; #100; //wait 100ns for global reset to finish //add stimulus here #100 a=0; b=1; cin=1; #100 a=1; b=0; cin=1; #100 a=1; b=1; cin=1; end initial begin #100 $ monitor (“a=%b, b=%b, cin=%b, sum=%b, carry=%b”, a, b, cin, sum, carry); end endmodule Xilinx Output: Verilog code for Full Adder Behavioral Modelling
Verilog Code for Gray to Binary Dataflow Modelling
Verilog Code for Gray to Binary Dataflow Modelling module gray_to_binary( input g0, input g1, input g2, input g3, output b0, output b1, output b2, output b3 ); assign b0 = g0;buf(b0,g0); assign b1 = g0 ^ g1; assign b2 = g0 ^ g1 ^ g2; assign b3 = g0 ^ g1 ^ g2 ^ g3; endmodule //Testbench code for Gray to Binary Dataflow Modelling initial begin ...
VLSI: 2-4 Decoder Dataflow Modelling with Testbench
Verilog Code for 2-4 Decoder Dataflow Modelling module decoder_2_to_4( input a0, input a1, output d0, output d1, output d2, output d3 ); assign an0 = ~ a0; assign an1 = ~ a1; assign d0 = an0 & an1; assign d1 = a0 & an1; assign d2 = an0 & a1; assign d3 = a0 & a1; endmodule //Testbench code for 2-4 Decoder Dataflow Modelling initial begin ...
VLSI: AND Gate Dataflow Modelling with Testbench
Verilog Code for AND gate Dataflow Modelling module ANDgate( input a, input b, output c ); assign c = a & b; endmodule //Testbench code for AND gate Dataflow Modelling initial begin // Initialize Inputs a = 0;b = 0; // Wait 100 ns for global reset to finish #100 a = 0; b = 1; #100 a = 1; b = 0; #100 a = 1; b = 1; e nd Output:
VLSI: 1 Bit Magnitude Comparator Dataflow Modelling with Testbench
Verilog Code for 1 Bit Magnitude Comparator Dataflow Modelling module comparator_1_bit( input x, input y, output a, //x>y output b, //x=y output c //x<y ); assign xn = ~ x; assign yn = ~ y; assign a = x & yn; assign c = xn & y; assign b = ~ ( a | c ); endmodule //Testbench code for 1 Bit Magnitude Comparator Dataflow Modelling initial begin // Initialize Inputs ...